Electrically-heated receptacle.



J. M. ROE.

ELEOTBIOALLY HEATED BEOBPTAOLE.

APPLIOATIOH FILED JULY 17, 1912.

Patented Dec. 10, 1912.

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wwmmo l imiwk Q UNITED STATES PATENT OFFICE.

.mcxson m. ROE, OFJSUNNYSIDE, WASHINGTON, ASSIGNOR or ONE-HALF 'ro CLAUDIU'" NEwcoMs, or SUNNYSIDE, WASHINGTON.

ELECTRICALLY-HEATED RECEPTACLE.

Specification of Letters Patent.

Patented Dec. 10. 1912.

To all whom it may concern.

Be it known that I, JACKSON M. Ron, a citizen of the United States, residing at Sunnyside. in the county of Yakima and State of \Vashington, have invented new and useful Improvements in Electrically-Heated Receptacles, of which the following is a specification.

This invention relates to electrically heated receptacles and has for an object to provide a portable apparatus which may be con-' nected in any suitable electric circuit and operatively associated with a receptacle such as a coffee pot whereby the latter can be effectuall heated with maximum efficiency and wit the minimum expense.

Another object of the invention is to provide means whereby the receptacle can be readily connected with or disconnected from the heating element so as to obviate the necessity of lifting the latter when the receptacle is lifted and canted to discharge its contents.

Another object of the invention is to rovide a device of this character which will he so constructed that when the receptacle is removed from the heating element the electric circuit will be opened and thecircuit closed when the receptacle is operatively as sociated with said element.

In the drawing formin a ortion of this application and in which ike etters of reference indicate similar parts in the several viewer-Fi ceptacle. through. Fi 3 is a vertical section through the heating e ement. Fi 4 is. a horizontal section on line 4-4 of i .3. Fig-liaise perspective view of the eatin ig. 6 is a diagrammatic view, 1 lustrating the electrical connections-between the heat in element and the circuit closer.- i52 e device which is admirably adapted for use by travelers preferably ncludes'a portable structure consisting of a: vessel -1 and a heating element '2,'-therefor.}'--The heating element icomprises a shell B'Iwhieh has mounted therein a refractory body 4 in which is embedded a resisting wire .-5.1to'

which electricity ma -be' conducted to thoroughly heat the b0 y; 4. The sidefwallsffi of the shell 8 are upset to form a'retainin flan e 7 which engages against a portion 0 the ody 4 so as to securely hold the latter operatively associated with the shell.

re 1 is a side view of the re ig. 2 is a vertical section thereelement- The vessel 1 which as conventionally shown herein is in form of a coffee pot is provided with a fiat'bottom 8 which is superimposed with relation to the upper surface of the heat body 4 so that when the latter is heated the heat emanating therefrom will be applied directly to bottom of the vessel. At one side the vessel 1 carries a keepert) which is adapted to be engaged by the hook 10 of a latch 11. The latch is' pivoted at 13 to one side of the shell 3, a spring 13 of the shell being engaged against t e latch so as to hold the' hook thereof operatively associated with the kee er 9 of the vessel. The latch 11 is provided with a manipulating portion 14 which may be engaged by the hand and manipulated so as to effect the release of the latch from the kee er. At the opposite side of the shell 3 an formed preferably on the walls 6 are vertical ears 15 which havehorizontal passages 18 therein for the reception of lateral pins 17 upon the vessel 1 and near the lower end thereof. v

- The terminals 18 of the resisting wire 5 are-secured to relatively weak contacts 19 which have insulating'portions 20 that are disposed in the path of the pins 17. The

terminals 18 of the resisting wire are extended through an insulating block 21 of the shell 3. This block has also mounted thereon fixed contacts 22 which are located in such proximit to the contacts 19 as to be engaged there y under the force or action of the ins 17. The contacts 22 are provided with insulating portions 23 which are ,of a size suflicient to prevent the hand of 'the operator contacting with the metal portionsof the contacts 19 and 22. The con-.

ta'cts 22 are connected by branch wires 24 withsockets 25 orequivalent devices that ma be connected in any suitable manner. Fromthe construction described it is evident that the means employed while being extremely simple and durable are effective toa rapid heating of the cooking vessel with a minimum expenditure of electricity. After the receptacle 1 has been heated to the desired degree the latch 11 of the shell 8 'canbe-actuated to etiectitsrelease from tacle l in operative position upon the shell 3 the pin 17 should engage against the in sulating portions 20 of the contacts 19.. On

predetermined movement or adjustment of the receptacle the said contact.- 19 will be made to enga e the contacts 22. This connects the terminals 18 of the resisting wire 5 with the branches 24, the latter being con nested in a main source of heat supply then causes the insulating heat element 4. to be thoroughly heated as described. When the vessel 1 is removed; from the shell 3. the pins 17 will disengage the insulatingportions 20 and under the inherent elasticity of the contacts 19 the latter will automatically disconnect themselves 7 from the adjacent contacts 22. The electric circuit is now broken and no heat willbe conducted to the element 4 as long as the companion contacts are disconnecte I claim An electricall heated element including a circuit closer aving fixed contacts and movable contacts, a vessel movably sup ported upon the element, and means on the vessel whereby on one adjustment thereof on the element the movable contacts will be brought to bear against the said fixed contacts.

In testimony whereof I afiix my signature in presence of two witnesses.

JACKSON M. ROE.

Witnesses:

CLAUDIA L. HAMBLY, H. H. Nnwcoun.

Copies 01 this patent may be obtained for five units each, by addressing the "Commissioner of Patents, Washingtom-D 0." 

